Home / 68,619.40-102,929.10-40,552.90

Finding the Fourth Proportional to 68,619.40, 102,929.10 and 40,552.90

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Solution

The fourth proportional to 68,619.40, 102,929.10 and 40,552.90 is: 60,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.40 : 102,929.10 = 40,552.90 : x
  2. Step 2: Convert to fraction form
    68,619.40/102,929.10 = 40,552.90/x
  3. Step 3: Cross multiply
    68,619.40x = 102,929.10 × 40,552.90
  4. Step 4: Simplify right side
    68,619.40x = 4,174,073,499.39
  5. Step 5: Solve for x
    x = 4,174,073,499.39/68,619.40
  6. Step 6: Final answer
    x = 60,829.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.